Do you have a contract? It is not a good practice to give out RAW images or unedited images? Some might say your pictures are over edited but is that your style and the style the clients saw when they booked you? The pictures you posted looked consistant which is important no matter the style. I have shot almost 50 weddings and I have had a few people ask for the RAW files before they booked me but after I explained to them that my images are my brand and that I go to a lot of truble to make every image that comes form me consistant they understand and don't mention it again. It would be like going into a restaurant and asking to go back into the kitchen to make your own meal. I think you need to ask them very specifically what they don't like about the pictures because there are some people who are just a little controlling and are used to controlling everything. It may not have mattered if you were Jose Villa they still might might of made the same request. They may just not know that is something like that isn't typically done. If they keep insisting you might try to offer further edites on a limited number of images. No more than 25-50 but say that it would be very time consuming to go back through and re-edit all of the images and that if you did that for everyone you would have been out of business a long time ago. Good luck and BTW I like the pictures you posted and think you have a lot going for you so don't let something like this set you back. Just be very specific in the future so the client knows your expectations and you know their expectations.